HOW: Begin by lying on your stomach. Bend one elbow and bring it up to shoulder height on the ground. Use the other hand to push into the ground and assist with rotating that leg up and over the other leg creating a twist for your lower half. Hold that stretch for as long as prescribed and continue to move your leg over and back. Repeat as needed.
FEEL: You should feel a stretch in your chest muscles.
COMPENSATION: Keep the arm down on the side you want stretched.